One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,8,12,7,3,6,11)(4,9,15,16,10,5,14,13)(17,18,21,25)(19,26,28,32)(20,23,30,24)(22,29,31,27)(1,3,7,2)(4,13,10,16)(5,14,9,15)(6,11,8,12)(1,4)(2,9)(3,5)(6,14)(7,10)(8,15)(11,13)(12,16)(17,19,21,28)(18,22,25,31)(20,29,30,27)(23,26,24,32)(1,5)(2,10)(3,4)(6,13)(7,9)(8,16)(11,14)(12,15)(18,23)(20,30)(22,26)(24,25)(27,29)(31,32) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.